A Stuttgart, Germany-based research team working on building artificial blood vessels with 3-D printers recently took another step forward by developing gelatin “bio-inks” that can be sprayed through inkjet nozzles without clogging them. The inks are an essential piece in the ongoing effort to turn printers into medical devices that create artificial skin and muscle patches, nerve grafts, biofluids and, eventually, whole organs. Research teams globally are pursing 3-D printing and rapid ...


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